Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mariah D Mccafferty, FNP-C

Nurse Practitioner in Chicago, IL · enumerated 2025.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1245100742

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Registry record

Entity type Individual (Type 1)

Name Mariah D Mccafferty

Credential FNP-C

Sex Female

Practice address 500 W Monroe St Ste 28, Chicago, IL, 60661

Phone (877) 751-5783

Enumeration date Nov 10, 2025

Last updated in NPPES Jan 19, 2026

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NA (TN) Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Mariah Mccafferty's NPI record?

Cross-check NPI 1245100742 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1245100742 active?

Yes, as of the latest NPPES snapshot, NPI 1245100742 is active (record last updated 2026-01-19).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-19.